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Hot Finished Structural Hollow Sections EN 10210-1:2023 & EN 10210-2:2023 from China Suppliers & Factory
Ordering Information
When ordering, the following must be specified:
- Standard designation (EN 10210-1 & EN 10210-2)
- Type of hollow section (shape and dimensions)
- Steel grade (e.g., S235JRH, S355J2H, etc.)
- Delivery condition (usually "hot-finished")
- Quantity (length, number of pieces, or weight)
- Any additional testing or inspection requirements
Main Steel Grades
The standard covers non-alloy steels (S235, S275, S355) and fine-grain steels (S275NH, S355NH, S420NH, etc.) with specified impact energy requirements. Common grades include:
- S235JRH
- S275J0H / S275J2H
- S355J0H / S355J2H / S355K2H
- S275NH / S355NH / S420NH (for low-temperature applications)
Chemical Composition & Mechanical Properties
- Chemical composition limits for carbon (C), manganese (Mn), phosphorus (P), sulfur (S), etc.
- Mechanical properties (yield strength, tensile strength, elongation, impact energy at specified temperatures).
Inspection & Testing Requirements
- Visual inspection for surface defects.
- Dimensional checks (tolerances as per EN 10210-2).
- Mechanical tests (tensile, impact, hardness if required).
- Non-destructive testing (NDT) if specified (ultrasonic, eddy current, etc.).
- Certification: Manufacturer must provide an Inspection Certificate (3.1 or 3.2 as per EN 10204).
Marking & Protection
Each hollow section must be marked with:
Manufacturer's name/trademark
Steel grade
Heat number
Dimensions
Surface protection (e.g., oiling, temporary corrosion protection) may be applied.
Tolerances (EN 10210-2)
- Dimensional tolerances (outer dimensions, wall thickness, straightness, squareness).
- Mass tolerances (deviation from theoretical weight).
📌 Conclusion
EN 10210 provides comprehensive specifications for hot-finished structural steel hollow sections, ensuring quality in chemical composition, mechanical properties, and dimensional tolerances. It is widely used in construction, bridges, and other load-bearing structures.
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Frequently Asked Questions (FAQ)
Q What is EN 10210 and what does it cover?
EN 10210 is a European standard that specifies the technical delivery conditions for hot-finished structural steel hollow sections. It consists of two parts: EN 10210-1 covering material requirements (chemical composition and mechanical properties) and EN 10210-2 covering dimensional and mass tolerances.
Q What steel grades are available under EN 10210?
EN 10210 covers a range of non-alloy and fine-grain structural steel grades including S235JRH, S275J0H, S275J2H, S355J0H, S355J2H, S355K2H, S275NH, S355NH, and S420NH. The grade selection depends on the required strength level and operating temperature.
Q What information is required when placing an order for EN 10210 hollow sections?
When ordering, you must specify the standard designation (EN 10210-1 & EN 10210-2), the type and dimensions of the hollow section, the steel grade, the delivery condition, the required quantity, and any additional testing or inspection requirements.
Q What type of inspection certificate is required for EN 10210 products?
Manufacturers must provide an Inspection Certificate as per EN 10204. Typically, a 3.1 certificate (issued by the manufacturer's authorized inspection representative) is standard, while a 3.2 certificate (countersigned by an independent third-party inspector) may be required for more critical applications.
Q What are the dimensional tolerances specified in EN 10210-2?
EN 10210-2 specifies tolerances on outer dimensions, wall thickness, straightness, squareness of ends, and mass (weight deviation from theoretical values). These tolerances ensure consistent fit and performance in structural applications.
Q In what applications are EN 10210 hot-finished hollow sections commonly used?
EN 10210 hot-finished structural hollow sections are widely used in construction, civil engineering, bridge building, industrial frameworks, and other load-bearing structures where high strength, dimensional accuracy, and reliable mechanical performance are essential.